Michael and Joe
There is something strange about this part number. I find AEC3207 listed
in the Austin A95 & A105 parts list as - Screw - cover to housing!
However the laygear for this gearbox is AEC3267.
Is your part actually AEC3267 with the third number not clear?
All the best
>Michael Salter said;
>
>I am trying to help the original owner of a 100/6 with a gearbox
>rebuild.
>This car has an interesting history which includes, I understand, the
>selling dealer installing a replacement engine and gearbox 2 weeks after
>
>delivery.
>The thing that is odd is that the laygear is not one that I recognize.
>The
>part number seems to be part # AEC3207. It has one less tooth on the
>large
>gear than the 1B3728 but the teeth are cut the same way.
>I suspect that this may be for a sedan rather than a Healey as the
>gearbox
>input shaft has one more tooth than normal.
>Can anyone offer any advice on this or does anyone have an AEC3207
>laygear.
>
> Mike,
>I cannot tell you nos. but back in the late 60's and early 70's I
>repaired my 100/6 with sedan gearsets using the original Healey
>mainshaft for the overdrive connection.
>Once I crawled under a Morris Issis with the nest of red-back spiders
>and removed the g'box and another time a Morris Marshall. I cannot
>remember if both were the same but one of the gearsets was as you
>describe. The other gears on the cluster were the same no. of teeth as
>the 100/6. The ratio of the constant mesh gears lowered the effective
>ratios of 1st,2nd,and 3rd which was not desirable in itself but it did
>make a bigger gap and more usefull 3rd/overdrive ratio. What the car
>then needed was a diff ratio change,which I did not carryout.
>On reflection the other gearset also had a different no. of teeth on I
>think 3rd? and therefore would not interchange with the complete set of
>gears on the Healey output shaft
>I was able to visit the local library and they had in the reference
>section a series of repair books which had all the ratios and nos. of
>teeth. [ 35 years ago ]
>There is a NZ contact near to me in Wollongong who sources Austin parts
>from NZ as a business and I suspect he is upto date on the gear
>situation an d may have parts. John Neuman [ Newman]
>
>Joe
>red one
>blue one
>
--
John Harper
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